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Violacein-Producing Collimonas sp. from the Sea Surface Microlayer of Costal Waters in Trøndelag, Norway
Department of Biotechnology, Norwegian University of Science and Technology, N-7491 Trondheim, Norway
SINTEF Industrial Biotechnology, SINTEF, N-7034 Trondheim, Norway
* Author to whom correspondence should be addressed.
Received: 13 October 2009; in revised form: 11 November 2009 / Accepted: 12 November 2009 / Published: 12 November 2009
Abstract: A new strain belonging to the genus Collimonas was isolated from the sea surface microlayer off the coast of Trøndelag, Norway. The bacterium, designated Collimonas CT, produced an antibacterial compound active against Micrococcus luteus. Subsequent studies using LC-MS identified this antibacterial compound as violacein, known to be produced by several marine-derived bacteria. Fragments of the violacein biosynthesis genes vioA and vioB were amplified by PCR from the Collimonas CT genome and sequenced. Phylogenetic analysis of these sequences demonstrated close relatedness of the Collimonas CT violacein biosynthetic gene cluster to those in Janthinobacterium lividum and Duganella sp., suggesting relatively recent horizontal gene transfer. Considering diverse biological activities of violacein, Collimonas CT shall be further studied as a potential producer of this compound.
Keywords: surface microlayer; Collimonas; violacein; biosynthetic genes
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Hakvåg, S.; Fjærvik, E.; Klinkenberg, G.; Borgos, S.E.F.; Josefsen, K.D.; Ellingsen, T.E.; Zotchev, S.B. Violacein-Producing Collimonas sp. from the Sea Surface Microlayer of Costal Waters in Trøndelag, Norway. Mar. Drugs 2009, 7, 576-588.
Hakvåg S, Fjærvik E, Klinkenberg G, Borgos SEF, Josefsen KD, Ellingsen TE, Zotchev SB. Violacein-Producing Collimonas sp. from the Sea Surface Microlayer of Costal Waters in Trøndelag, Norway. Marine Drugs. 2009; 7(4):576-588.
Hakvåg, Sigrid; Fjærvik, Espen; Klinkenberg, Geir; Borgos, Sven Even F.; Josefsen, Kjell D.; Ellingsen, Trond E.; Zotchev, Sergey B. 2009. "Violacein-Producing Collimonas sp. from the Sea Surface Microlayer of Costal Waters in Trøndelag, Norway." Mar. Drugs 7, no. 4: 576-588.